# Washington — Construction prompt payment act deadlines by US state — owner-to-contractor and contractor-to-subcontractor payment windows, retention release deadlines, and late-payment interest rates

For Washington, owner-to-gc payment deadline (days) is 30; gc-to-sub flow-down deadline (days) is 10; late-payment interest rate is 1% per month; project types covered is public; attorney fees recoverable is yes, verified against its source on 2026-08-15.

- **State:** Washington _(verified: appears in the quote below)_
- **Owner-to-GC payment deadline (days):** 30 _(verified: appears in the quote below)_
- **GC-to-sub flow-down deadline (days):** 10 _(verified: appears in the quote below)_
- **Late-payment interest rate:** 1% per month _(verified: appears in the quote below)_
- **Project types covered:** public _(verified: appears in the quote below)_
- **Attorney fees recoverable:** yes _(verified: appears in the quote below)_
- **Statutory citation:** Wash. Rev. Code §§ 39.76.011-39.76.040 and 39.04.250 _(verified: appears in the quote below)_

## What the source says

> Washington does not have any prompt payment provisions regarding private projects. Therefore, the timing of payments and penalties will be governed by the terms of the contract.

## Source

- https://www.levelset.com/prompt-payment/washington-prompt-payment-faqs/

Last verified: 2026-08-15. Review by: 2027-08-15.
Part of [Construction prompt payment act deadlines by US state — owner-to-contractor and contractor-to-subcontractor payment windows, retention release deadlines, and late-payment interest rates](https://referencesource.org/construction-prompt-payment-deadlines-by-state/).